I use pumpkin with my dogs too, but was not aware it is a pro or prebiotic, but yogurt is and I use a dollop of plain, no fat yogurt with my dogs meals too. I did get a probiotic from our vet for one of our dogs, it’s called Probios Daily Digestive Dog Tabs. My vet also talked to me once about food allergies and how tough they can be to find. She said the protein in the food is the thing you need to change, and you need to change to a protein the dog has never had before, she mentioned Kangaroo was a good one to try (unless you live down under, maybe). Zignature makes a kangaroo food. She also said you have to feed the new food to the dog for eight weeks in order to tell if it is going to do any good as it takes a while to completely get rid of any trace of the prior protein your dog ate, so if you didn’t stick with any new food you tried for at least eight weeks, you may not have stuck with it long enough.
